<template>
    <div class="login-wrap">
        <div class="ms-login">
            <div class="ms-title">后台管理系统</div>
            <el-form :model="param" :rules="rules" ref="login" label-width="0px" class="ms-content">
                <el-form-item prop="username">
                    <el-input v-model="param.eusername" placeholder="用户名" >
                        <el-button slot="prepend" icon="el-icon-lx-people"></el-button>
                    </el-input>
                </el-form-item>
                <el-form-item prop="密码">
                    <el-input
                        type="password"
                        placeholder="password"
                        v-model="param.epass"
                        @keyup.enter.native="submitForm()"
                    >
                        <el-button slot="prepend" icon="el-icon-lx-lock"></el-button>
                    </el-input>
                </el-form-item>
                <template style='margin-bottom: 5px'>
                    <!-- `checked` 为 true 或 false -->
                    <el-checkbox v-model="checked">记住用户名密码</el-checkbox>
                </template>
                <div class="login-btn">

                    <el-button type="primary" @click="submitForm()">登录</el-button>
                </div>
                <p class="login-tips">Tips : 用户名和密码不能为空。</p>
            </el-form>
<!--            <p v-show='editVisible' class="login-tips">Tips : 登陆加载中...</p>-->
            <el-progress
                v-show='editVisible'
                :text-inside="true"
                :stroke-width="15"
                :percentage="percentage"
                :color="colors">
            </el-progress>

        </div>
    </div>
</template>

<script>
export default {
    data: function() {
        return {
            param: {
                eusername: localStorage.getItem('eusername'),
                epass: localStorage.getItem('epass'),
            },
            rules: {
                eusername: [{ required: true, message: '请输入用户名', trigger: 'blur' }],
                epass: [{ required: true, message: '请输入密码', trigger: 'blur' }],
            }
            ,checked:false,
            editVisible:false,
            percentage: 20,//vue加载盘得百分比值,
            colors: [

                {color: '#f56c6c', percentage: 20},
                {color: '#e6a23c', percentage: 40},
                {color: '#5cb87a', percentage: 60},
                {color: '#1989fa', percentage: 80},
                {color: '#6f7ad3', percentage: 100}
            ]
        };
    },
    methods: {
        submitForm() {
      /*      this.$refs.login.validate(valid => {
                if (valid) {
                    this.$message.success('登录成功');
                    sessionStorage.setItem('token','ss');
                    localStorage.setItem('ms_username', this.param.username);
                    this.$router.push('/main');
                } else {
                    this.$message.error('请输入账号和密码');
                    console.log('error submit!!');
                    return false;
                }
            });*/
            console.log(this.param)
            this.$http.post('/login-check',{'eusername':this.param.eusername,'epass':this.param.epass}).then(data=>{

                // 保存用户信息
                // Storage只能存储字符串
                // localStorage 本地全局作用域，浏览器关闭再打开，local存在
                // sessionStorage 浏览器，浏览器关闭再打开，不存在
                // $store 刷新情况
                // code,msg,data{token principal}
                if(data.code == 200){
                    this.$message({
                        type:'success',
                        duration:5000,//显示时间
                        message:'登陆成功加载中....'
                    })
                    sessionStorage.setItem('eusername',this.param.eusername)
                    sessionStorage.setItem('epass',this.param.epass)
                    sessionStorage.setItem('token',data.data.token)
                    sessionStorage.setItem('photo',data.data.photo)
                    sessionStorage.setItem('principal',this.$qs.stringify(data.data.principal))
                    this.editVisible=true;
                    let time=setInterval(()=>{
                        if(this.percentage!=100){
                            this.percentage+=1
                        }else {
                            this.$router.push('/dashboard');
                            //
                            clearInterval(time)
                        }
                        //this.$router.push('/dashboard');

                    },40)
                    if(this.checked==true){
                        localStorage.setItem('eusername',this.param.eusername)
                        localStorage.setItem('epass',this.param.epass)
                    }else {
                        localStorage.clear()
                    }
                }else if(data.code == 501){
                    this.$message.error(data.msg);
                }
            }).catch(error=>{
                console.log(error)
                this.$message.error('登录失败');
            });
        }
    },
};
</script>

<style scoped>
.login-wrap {
    position: relative;
    width: 100%;
    height: 100%;
    background-image: url(../../assets/img/login-bg.jpg);
    background-size: 100%;
}
.ms-title {
    width: 100%;
    line-height: 50px;
    text-align: center;
    font-size: 20px;
    color: #fff;
    border-bottom: 1px solid #ddd;
}
.ms-login {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 350px;
    margin: -190px 0 0 -175px;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.3);
    overflow: hidden;
}
.ms-content {
    padding: 30px 30px;
}
.login-btn {
    text-align: center;
}
.login-btn button {
    width: 100%;
    height: 36px;
    margin-bottom: 10px;
}
.login-tips {
    font-size: 12px;
    line-height: 30px;
    color: #fff;
}
</style>